Jake Horvath
Posts: 3
Nickname: horvath
Registered: May, 2006
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Re: Need help with Java program
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Posted: May 3, 2006 5:48 PM
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Here are the other two classes that are almost fully complete except for a few minor parts.
import java.awt.*;
import javax.swing.*;
import java.util.ArrayList;
public class NameComponent extends JComponent
{
Purpose: defines the "graph", painting grid lines and
plot for each searched and found name
*/
private int grSize = 600; // initial plot dimensions
// array of colors for plot lines
private Color[] lineClrs = {Color.black, Color.red, Color.blue, Color.green};
private ArrayList<NameRecord> plotVar; // list of currently plotted names
private final int DECADES = 11; // number of decades with data
private final int GAP = 20; // spacing gap in pixels
private final int maxPlotY = 1000; // largest rank plot limit
// constructor
public NameComponent()
{
setPreferredSize(new Dimension(grSize, grSize)); // set JComponent size
plotVar = new ArrayList<NameRecord>(); // instantiate list for plotted names
}
// adds name to be plotted to list
public void addName(NameRecord nameToPlot)
{
plotVar.add(nameToPlot);
repaint(); // call paintComponent
}
// clears all plotted names
public void clearAll()
{
plotVar.clear(); // remove all elements of list
repaint(); // call paintComponent
}
// clears earliest plotted name
public void clearOne()
{
if (plotVar.size() > 0) // checks for existence of a name plot
{
plotVar.remove(0); // remove 0th name plot
repaint(); // call paintComponent
}
}
// paintComponent
public void paintComponent(Graphics g)
{
int xMax = getWidth(); // get container size
int yMax = getHeight();
g.drawLine(0, GAP, xMax, GAP); // draw top and bottom lines GAP pixels "in"
g.drawLine(0, yMax - GAP, xMax, yMax - GAP);
for (int k=0; k<DECADES; k++) // draw and label vertical decade lines
{
int i1 = (xMax * k) / DECADES;
g.drawLine(i1, 0, i1, yMax);
g.drawString("" + (1900 + k * 10), i1 + 2, yMax - 2);
}
for(int i=0; i<plotVar.size(); i++)
{
g.setColor(lineClrs[i % lineClrs.length]);
drawLines(g, plotVar.get(i));
}
}
// draws lines to connect decades
public void drawLines(Graphics g, NameRecord nameToPlot)
{
int xMax = getWidth(); // get container dimensions
int yMax = getHeight();
// draw line graph for name ranks - TO BE IMPLEMENTED
}
}
public class NameRecord
{
/**
Purpose: class definition for one line of data: name and 11 ranks
*/
private String aName; // name from data record
private int[] ranks; // array of ranks by decade
private final int MAX_RANK = 1500; // assumed maximum rank
private final int START = 1900; // starting year for rank data
private final int DECADES = 11; // number of decades of rank data
// constructor
public NameRecord(String s)
{
String strArray[] = s.split(" "); // create array of strings by
// splitting input string at each blank
aName = strArray[0]; // store name from 0th element of strArray
ranks = new int[strArray.length-1]; // create array for ranks
for (int i=1; i<strArray.length; i++) // store each rank from 1st position forward
{ // of strArray
ranks[i-1] = Integer.parseInt(strArray[i]);
}
}
// returns name from data record
public String getName()
{
return aName;
}
// return rank stored in ith position
public int getRank(int i)
{
return ranks[i];
}
// determine and return year with best rank
public int bestYear()
{
int year;
return 1900; // return "year" of best rank - TO BE MODIFIED
}
}
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